linux-kernel - [PATCH v2] ARM: dts: samsung: exynos5420-galaxy-tab-common: add wifi node

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Message-Id: <20240206-galaxy-tab-s-cleanup-v2-1-89025c6c66c5@grimler.se>
Date: Tue, 06 Feb 2024 17:02:27 +0100
From: Henrik Grimler <henrik@...mler.se>
To: Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Marek Szyprowski <m.szyprowski@...sung.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 ~postmarketos/upstreaming@...ts.sr.ht, Henrik Grimler <henrik@...mler.se>
Subject: [PATCH v2] ARM: dts: samsung: exynos5420-galaxy-tab-common: add
 wifi node

By using brcm/brcmfmac4354-sdio.bin from linux-firmware together with
nvram.txt from vendor firmware wifi works well on the chagall-wifi and
klimt-lte.

Signed-off-by: Henrik Grimler <henrik@...mler.se>
---
Describe wifi node for exynos5420-chagall-wifi and
exynos5420-klimt-wifi, and decrease available memory.
---
Changes in v2:
- Drop patch 1 and 3 (the latter was applied)
- Fixup patch 2 so it applies cleanly after dropping patch 1
- Link to v1: https://lore.kernel.org/r/20240130-galaxy-tab-s-cleanup-v1-0-d4e17857241d@grimler.se
---

Changes since v1:
- Fix conflicts after dropping patch 1
---
 .../dts/samsung/exynos5420-galaxy-tab-common.dtsi  | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi
index 3532f1e8e902..246040967082 100644
--- a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi
@@ -30,6 +30,7 @@ / {
 
 	aliases {
 		mmc0 = &mmc_0;
+		mmc1 = &mmc_1;
 		mmc2 = &mmc_2;
 	};
 
@@ -87,6 +88,13 @@ key-volume-down {
 			linux,code = <KEY_VOLUMEDOWN>;
 		};
 	};
+
+	mmc1_pwrseq: pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpy7 7 GPIO_ACTIVE_LOW>;
+		clocks = <&s2mps11_osc S2MPS11_CLK_BT>;
+		clock-names = "ext_clock";
+	};
 };
 
 &cci {
@@ -620,6 +628,25 @@ &mmc_0 {
 	vqmmc-supply = <&ldo3_reg>;
 };
 
+/* WiFi */
+&mmc_1 {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	card-detect-delay = <200>;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&mmc1_pwrseq>;
+	non-removable;
+	pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_int>, <&sd1_bus1>,
+		    <&sd1_bus4>, <&wifi_en>;
+	pinctrl-names = "default";
+	vqmmc-supply = <&ldo2_reg>;
+	samsung,dw-mshc-ciu-div = <1>;
+	samsung,dw-mshc-ddr-timing = <0 2>;
+	samsung,dw-mshc-sdr-timing = <0 1>;
+	status = "okay";
+};
+
 /* External sdcard */
 &mmc_2 {
 	status = "okay";
@@ -649,6 +676,11 @@ s2mps11_irq: s2mps11-irq-pins {
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
 	};
+
+	wifi_en: wifi-en-pins {
+		samsung,pins = "gpy7-7";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
 };
 
 &rtc {

---
base-commit: 9a5dbb835fd396c78da34b26ee91db6d529d096d
change-id: 20231210-galaxy-tab-s-cleanup-14da98b23606

Best regards,
-- 
Henrik Grimler <henrik@...mler.se>